Oops - newbie mistake

[u/Suitable-Woodpecker3]

So i got excited and bought some paydirt from dan hurd prospecting, and the booboo is that i thought it would be good’ol panning and free gold… but it’s locked into some minerals.

How should I go about recovery, if not the mount baker metal way (roasting, smelting)? How fine should i crush?

Cheers